In this tutorial we cover making an application that will allow you to check to see if a live stream is available before trying to play it. This tutorial requires Flash Media Interactive or developer versions as we will be taking advantage of some server side coding to get the job done. The concept in this tutorial can be applied in many ways but essentially we are going to ask the server if a live stream is available, if it isn’t then a warning is shown. The server side coding will also be setup to automatically keep track of live streams as they are published and unpublished. Client side is AS3 in Flex.